the bottom line is simple:
without opening pack and absolutely making sure no any other electronics are connected to cells except 2 sense taps - you dont know what are you doing.
it all depends where is that 4V tap connected to, what is this chip?
also
we dont have exact schematics of EMS power board
BUT
you are wrong- you forgot about two sense voltage taps clearly shown on my schematics which must connect to upper processing EMS board,
just look at my schematics ,
again, my conversion schematics shows:
2 pairs of sense wires tapped into string of 11S cells , what if one of two sense wires are connected to 4V tap wire**********
where is this 4 V wire connected to what??
how did you get those taps, what if one of this tap is at 4V wire? and 4V wire connected to chip????